期刊
OPTICAL MATERIALS EXPRESS
卷 5, 期 5, 页码 1137-1146出版社
OPTICAL SOC AMER
DOI: 10.1364/OME.5.001137
关键词
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资金
- [MAT2011-28379-C03]
- [MAT2014-57704-C3]
1D and 2D patterning of uncharged micro- and nanoparticles via dielectrophoretic forces on photovoltaic z-cut Fe:LiNbO3 have been investigated for the first time. The technique has been successfully applied with dielectric micro- particles of CaCO3 (diameter d = 1-3 mu m) and metal nanoparticles of Al (d = 70 nm). At difference with previous experiments in x- and y-cut, the obtained patterns locally reproduce the light distribution with high fidelity. A simple model is provided to analyse the trapping process. The results show the remarkably good capabilities of this geometry for high quality 2D light-induced dielectrophoretic patterning overcoming the important limitations presented by previous configurations. (C) 2015 Optical Society of America
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